Guarding Impel Down For A Hundred Years, I Am Invincible

Travel to the world of pirates more than a hundred years ago and become the jailer of Impel Down
Ryuu originally wanted to live in Impel Down eating salted fish and waiting to die for the rest of his life, but his strength did not allow it.
A hundred years passed quickly, and Ryuu became the youngest and longest-serving director in the history of Impel Down.
Cultivate and discover countless talents
He is the founder of Six Styles
Charlotte Linlin was his disciple as a child
Garp and Zephyr were his disciples
Aokiji and Kizaru served as impel down jailers
A large number of Vice Admirals also studied under him
In addition, there are young Roger, Rayleigh, Whitebeard, Golden Lion, Bullet...
Unknowingly.
A huge 'kingdom' called Impel down, spread across the sea! ! !
Ryuu: "I am neither a Marine nor a CP. As the evil nemesis of Impel down, it should be reasonable to capture a few Celestial Dragons to transform!"
---------
[One Piece belongs to Eiichiro Oda, I'm just a fan translator. You can find the same book by simply typing his name on Google.]
[It's a translation of a One Piece fanfic that I like. I've read up to chapter 93 and now I have it on pause. I'm surprised it's not on Webnovel. I'll translate it with ChatGPT. I'll modify a couple of things, like Chinese names, fights costing the MC, the MC's name, etc.]